The process of electroplating with Cu on the surface of Mg-Li alloy
The process of electroplating with Cu on the surface of Mg-Li alloy
复制标题
镁锂合金表面电镀Cu工艺
DOI：
10.1016/j.surfcoat.2013.03.024
复制
发表时间：
2013-06-25
影响因子：
5.4
通讯作者：
Zhang, Jinghuai
中科院分区：
文献类型：
--
作者：
Yin, Tingting;Wu, Ruizhi;Zhang, Jinghuai
Mg-Li alloy is a potential applied material because of its ultra-low density. Its poor corrosion and wear resistance hinder the expansive applications. In this research, an electroplating mean was carried to obtain a Cu-coating on the Mg-Li alloy. The main factors that influence the electroplating effect were examined through orthogonal experiments, and the determined optimum processing parameters by electrochemical tests are as follows: concentration of main salt is 50 g/L, current density is 2 A/dm(2), solution temperature is 40 degrees C and electroplating time is 30 min, respectively. Afterwards, surface and cross-section morphology feature and elemental composition were characterized by SEM and EDS, and surface phase composition was characterized by XRD. Corrosion resistance and adhesion property of the coating were investigated by electrochemical tests and cross-cut tests. Results show that there exists the uniform, dense and pure Cu coating with nodular structures on the surface of Mg-Li alloy. Meanwhile, the corrosion resistance and adhesion properties are improved and the hardness value is increased after electroplating with Cu, which concludes that the coating can provide protection for Mg-Li alloys. (C) 2013 Elsevier B.V. All rights reserved.
